Clearly observe the phenomena occurring during electrical discharges in a gas in accordance with its pressure and type, cathode glow, positive column and canal rays. This discharge tube is equipped with a fluorescent screen at both ends. The demountable design allows for quick installation in tube holder (U18505). Tube includes a needle ventilation valve and vacuum hoses. Connections are via 4mm contact pins. A high voltage power supply with 5 kV rotary vane pump (WLS-1802-07) and tube holder (WLS-1802-62) are required, and available separately. Size: 30 x 7.6 x 7.6cm; weight: 1 lb. Specifications: Polarization voltage: U < 5 kV Discharge current: typically I = 1.2 mA
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